Combined tracks comment resolution

Pete Anslow

Description

Combined tracks comment resolution IEEE P802.3ba, Quebec City, May 20091Comment resolution• The comments on the following slides will be resolved in a session of the whole Task Force on Monday 4 May• See agenda_01_0509 for schedule• The order in which the comments are reviewed and the schedule are subject to change• Comments bracketed together with [] cover a common topic2General• 480 All Tx's transmitting, All Rx's receiving• 451 S-parameter naming => dambrosia_01_0509• 447 Channel parameter figs/graphs consistency => dambrosia_02_0509• 448 Update equations for consistency => dambrosia_02_0509• [648, 487] Single definition of service interface referenced by other clauses• 648 => ganga_03_0509• 76 10GBASE-CR10 MTTFPA => gustlin_04_0509• 508 References to definitions in Tables (85, 86, 87, 88, 83A, 83B)• [314, 319, 320, 321 BASE-KR/CR], 566 64B/66B PCS, 567 FEC on naming• [775, 52, 636], [564, 416], 69, 478 on AN_LINK.indication• [71, 565], [559], [783] Auto-negotiation• 71 => dawe_04_0509• 551 Multiple PMA MMDs• 585 Clause 83 should be an equation• [264, 265] Tables 85-5, 86-7 consistency• [613, 420, 67] Compliance boards for Clause 83B• 420 => ghiasi_03_0509• 581 Reference to FC-PI4, SFF8431 (add in 85, 86?)3Architecture figures• Change 40GBASE-R PCS and 100GBASE-R PCS to 64B/66B PCS• 577 All 802.3ba architecture figures• 560 Figure 69-1• 575 Figure 80-1• FEC layer optional and conditional• 531 Figures 80-1, 81-1, 82-1, 83-1 • 109 ...

Informations

• Publié par: Luzev
• Nombre de lectures: 35
• Langue: English

Extrait

1

Combined tracks comment resolution

IEEE P802.3ba, Quebec City, May 2009

2

Comment resolution

• The comments on the following slides will be resolved in

a session of the whole Task Force on Monday 4 May

• See agenda_01_0509 for schedule

• The order in which the comments are reviewed and the

schedule are subject to change

• Comments bracketed together with [] cover a common

topic

3

General

• 480

All Tx's transmitting, All Rx's receiving

• 451

S-parameter naming => dambrosia_01_0509

• 447

Channel parameter figs/graphs consistency => dambrosia_02_0509

• 448

Update equations for consistency => dambrosia_02_0509

• [648, 487] Single definition of service interface referenced by other clauses

• 648 => ganga_03_0509

• 76

10GBASE-CR10 MTTFPA => gustlin_04_0509

• 508

References to definitions in Tables (85, 86, 87, 88, 83A, 83B)

• [314, 319, 320, 321

BASE-KR/CR

], 566

64B/66B PCS

, 567

FEC

on naming

• [775, 52, 636], [564, 416], 69, 478

on AN_LINK.indication

• [71, 565], [559], [783] Auto-negotiation

• 71 => dawe_04_0509

• 551

Multiple PMA MMDs

• 585

Clause 83 should be an equation

• [264, 265] Tables 85-5, 86-7 consistency

• [613, 420, 67] Compliance boards for Clause 83B

• 420 => ghiasi_03_0509

• 581

Reference to FC-PI4, SFF8431 (add in 85, 86?)

4

Architecture figures

• Change 40GBASE-R PCS and 100GBASE-R PCS to 64B/66B PCS

• 577 All 802.3ba architecture figures

• 560 Figure 69-1

• 575 Figure 80-1

• FEC layer optional and conditional

• 531 Figures 80-1, 81-1, 82-1, 83-1

• 109 Figure 81-1

• 110 Figure 82-1

• 112 Figure 83-1

• 530 MII depiction in Figure 73-1

5

Delay and Skew

• 275

Delay one end of link and one way through medium all clauses

• [55, 81]

Delay one direction through medium

• 54

Column for ns

• [157, 160] Delay through medium no more than

• 108

Table 80-2 show time for pause_quanta

• [156, 159] Point to Table 80-2 for pause_quanta definition

• 528

Increase delay for MAC/RS/MAC C

• [777, 54]

Delays for clause 85

• [53, 73, 68] Delay for PMD, AN and medium

• 635

Table 80-2 remove informative

• 382

Delete delay section in all clauses except 80

• [643, 263] Modify Annex 31B Pause

• 429

Tables 80-3, 80-4 (skew) remove informative

• [379, 388] Delete skew section in all clauses except 80

6

Delay resolution Clause 80

In clause 80.3 change the last but one sentence to "Table 80-2 contains the values of

maximum sublayer

delay (sum of transmit and receive delays at one end of the link)

in

bit time

s

as specified in 1.4 and pause_quanta as specified in 31B.2.

If a PHY contains

an Auto-Negotiation sublayer, the delay of the Auto-Negotiation sublayer is included

within the delay of the PMD and medium.

“

Change the title of Table 80-2 to "

Sublayer

delay constraints“and change the values to

be consistent with the values below.

Add a column to Table 80-2 for

Maximum (ns)

.

In Table 80-2 change "Includes delay associated with" to "

Includes delay of one direction

through

" in three places. Add footnotes to Table 80-2 "

Note that for 40GBASE-R, 1

pause_quant

um

is equal to 12.8 ns and for 100GBASE-R, 1 pause_quant

um

is equal to

5.12 ns. (see 31B.2 for the definition of pause_quanta.)

“ and "

Should there be a

discrepancy between this table and the delay requirements of the relevant sublayer

clause, the sublayer clause prevails

“

Black text – Instructions and Draft 2.0 text

Red text

– changes in Proposed Response to comment #275

Blue text

– further proposed changes

7

Delay resolution Clauses 81, 82 and 83

In Clause 81.1.4 change the sentence starting in line 41 to "The maximum cumulative

MAC Control, MAC and RS

delay (sum of transmit and receive delays at one end of the

link)

shall meet the values specified in Table 81-1." Change the title of Table 81-1 to

"

Delay

constraints". In Table 81-1 change 40 Gb/s MAC, RS, and MAC Control delay to

20

pause_quanta, or

10240

BT and the 100 Gb/s MAC, RS, and MAC Control delay to

48

pause_quanta, or

24576

BT.

Add a column to Table 83-1 for Maximum (ns).

In Clause 82.5 change the last two sentences to "The

maximum

delay contributed by the

40GBASE-R PCS

(sum of transmit and receive delays at one end of the link)

shall be no

more than 11264 BT

(22 pause_quanta

or 281.6 ns

)

. The

maximum

delay contributed by

the 100GBASE-R PCS

(sum of transmit and receive delays at one end of the link)

shall

be no more than 35328 BT

(69 pause_quanta

or 353.28 ns

)

.“

At end of paragraph, add

"See 80.3."

In Clause 83.5.4 change the clause title to "

Delay constraints

". Change the sentence

starting on line 34 to "The maximum cumulative

delay contributed by up to four PMA

stages in a PHY (sum of transmit and receive delays at one end of the link)

shall meet

the values specified in Table 83-1.“

At end of paragraph, add "See 80.3."

Change the title

of Table 83-1 to "

Delay constraints

“.

Add a column to Table 83-1 for Maximum (ns).

8

Delay resolution Clauses 84 and 85

In Clause 84.4 change the last three sentences to "A description of overall system delay

constraints and the definitions for bit-times and pause_quanta can be found in 69.3 and

Table 80-2

. The sum of the transmit and the receive delays

at one end of the link

contributed by the 40GBASE-KR4 PMD

, AN

and

the

medium

in one direction

shall be no

more than

2048

bit times

(4 pause_quanta

or 51.2 ns

)

. It is assumed that the

one way

delay through the medium is

no more than 320

bit times

(8 ns)

.“

In Clause 85.4 change the last three sentences to "A description of overall system delay

constraints and the definitions for bit-times and pause_quanta can be found in 80.3

and

Table 80-2

. The sum of the transmit and the receive delays

at one end of the link

contributed by the 40GBASE-CR4

PMD, AN and the medium in one direction

shall be no

more than

6144

bit times

(12 pause_quanta

or 153.6 ns

)

. It is assumed that the

one way

delay through the medium is

no more than 2072

bit times

(51.8 ns)

.

The sum of the transmit and the receive delays at one end of the link contributed by the

100GBASE-CR10 PMD, AN and the medium in one direction shall be no more than

14848 bit times (29 pause_quanta

or 148.48 ns

). It is assumed that the one way delay

through the medium is no more than 5180 bit times

(51.8 ns)

.

"

9

Delay resolution Clauses 86, 87 and 88

In Clause 86.2.1 change the first two sentences to "

The sum of the transmit and receive

delays at one end of the link contributed by the

40GBASE-SR4 PMD

including 2 m of

fiber in one direction shall be no

more than 1024 bit-times

(

2 pause_quanta

or 25.6 ns

)

.

The sum of the transmit and receive delays at one end of the link contributed by the

100GBASE-SR10 PMD

including 2 m of fiber in one direction shall be no

more than 2048

bit-times

(

4 pause_quanta

or 20.48 ns

)

.

See 80.3.

“

In 86.2 title, change "skew" to "Skew"

In Clause 87.3.1 change the sentence starting on line 6 to "The

sum of the transmit and

receive delays at one end of the link contributed by the 40GBASE-LR4

PMD

including 2

m of fiber in one direction shall be no

more than 1024 bit-times

(

2 pause_quanta

or 25.6

ns

)

.

See 80.3.“ Change "skew" to "Skew", in four places on this page.

In Clause 88.3.1 change the sentence starting on line 6 to "The

sum of the transmit and

receive delays at one end of the link contributed by the 100GBASE-LR4 or

100GBASE-

ER4 PMD including 2 m of fiber in one direction shall be no

more than 2048 bit-times

(

4

pause_quanta

or 20.48 ns

)

.

See 80.3.

"

Change "skew" to "Skew", in two places on this

page.